CN110752311A

CN110752311A - Display panel and display device

Info

Publication number: CN110752311A
Application number: CN201911040259.8A
Authority: CN
Inventors: 张国峰; 王俊强
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-02-04
Anticipated expiration: 2039-10-29
Also published as: CN110752311B

Abstract

The invention provides a display panel and a display device, wherein the display panel comprises: a first display area and a second display area; a light emitting device positioned in the first display region; the light emitting device includes a composite anode structure; in the direction perpendicular to the display panel and pointing to the light emitting surface of the light emitting device, the composite anode structure comprises a first electrode layer, a function adjusting layer and a second electrode layer which are sequentially stacked; the function adjusting layer comprises a plurality of silver nanorods, the composite anode structure comprises a first state and a second state, and the transmittance of the composite anode structure in the first state is greater than that in the second state. For improving the imaging quality.

Description

Display panel and display device

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.

Background

The existing organic light emitting diode OLED technology generally adopts the microcavity effect to improve the overall light emitting efficiency of the device. The microcavity effect is typically enhanced by using an anode structure comprising a thin layer of completely opaque silver, for example, a sandwich structure of ITO/Ag/ITO. The opaque silver thin layer can reflect external light strongly, and meanwhile, the transmittance of the corresponding anode structure is low.

In order to realize a full-screen display of the OLED display device, as shown in fig. 1, an area 1 that will also display is generally disposed in a display area of the OLED display device, and an optical electronic element 100 (e.g., a camera) is disposed in the area 1.

However, due to the strong reflection of light by the silver thin layer in the region 1, the optical electronic element 100 cannot receive a sufficient amount of light, thereby causing a reduction in the imaging quality of the optical electronic element 100.

Disclosure of Invention

The invention provides a display panel and a display device, which are used for improving the imaging quality.

In a first aspect, an embodiment of the present invention provides a display panel including:

a first display area and a second display area;

a light emitting device positioned in the first display region; the light emitting device includes a composite anode structure;

in the direction perpendicular to the display panel and pointing to the light emitting surface of the light emitting device, the composite anode structure comprises a first electrode layer, a function adjusting layer and a second electrode layer which are sequentially stacked; the function adjusting layer comprises a plurality of silver nanorods, the composite anode structure comprises a first state and a second state, and the transmittance of the composite anode structure in the first state is greater than that in the second state.

Based on the same inventive concept, embodiments of the present invention further provide a display device, including the display panel according to the first aspect, the display device including a first mode and a second mode, when the display device is in the first mode, the composite anode structure is in the first state; when the display device is in the second mode, the composite anode structure is in the second state.

The invention has the following beneficial effects:

in the display panel and the display apparatus provided in the embodiments of the present invention, in a direction perpendicular to the display panel and pointing to the light emitting surface of the light emitting device in the first display area, the composite anode structure includes a first electrode layer, a function adjusting layer, and a second electrode layer, which are sequentially stacked, where the function adjusting layer includes a plurality of silver nanorods, and the composite anode structure including a plurality of silver nanorods includes a first state and a second state, and a transmittance of the composite anode structure in the first state is greater than a transmittance of the composite anode structure in the second state. That is to say, the adjustment of the light transmittance of the composite anode structure corresponding to the first display area is realized through the function adjusting layer comprising the plurality of silver nanorods, so that the transmittance of the composite anode structure corresponding to the first display area in the first state is improved, and the imaging quality is improved.

Drawings

FIG. 1 is a schematic diagram of a display device according to the related art;

FIG. 2 is a schematic top view of the region 1 shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view along AA' in the area 1 shown in FIG. 2;

fig. 4 is a schematic top view of a display panel according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view along aa' direction of the composite anode structure in the sub-pixel unit spx in the first display area A1 shown in FIG. 4;

fig. 6 is a schematic top view of a display panel including a signal layer according to an embodiment of the present invention;

FIG. 7 is a schematic view of a composite anode structure in a second state according to an embodiment of the present invention;

FIG. 8 is a schematic view of a composite anode structure in a first state according to an embodiment of the present invention;

FIG. 9 is a schematic view of a composite anode structure in a second state according to an embodiment of the present invention;

FIG. 10 is a schematic view of a composite anode structure in a second state according to an embodiment of the present invention;

FIG. 11 is a schematic view of a composite anode structure in a first state according to an embodiment of the present invention;

FIG. 12 is a schematic diagram illustrating the direction of current flow in a signal layer according to an embodiment of the present invention;

FIG. 13 is a schematic diagram illustrating the direction of current flow in a signal layer according to an embodiment of the present invention;

FIG. 14 is a schematic view of a composite anode structure in a second state according to an embodiment of the present invention;

FIG. 15 is a schematic view of a composite anode structure in a first state according to an embodiment of the present invention;

FIG. 16 is a schematic diagram illustrating the direction of current flow in a signal layer according to an embodiment of the present invention;

FIG. 17 is a schematic view of a composite anode structure in a second state according to an embodiment of the present invention;

FIG. 18 is a schematic view of a composite anode structure in a first state according to an embodiment of the present invention;

FIG. 19 is a schematic diagram illustrating the direction of current flow in a signal layer according to an embodiment of the present invention;

FIG. 20 is a schematic view of a composite anode structure in a second state according to an embodiment of the present invention;

FIG. 21 is a schematic view of a composite anode structure in a first state according to an embodiment of the present invention;

FIG. 22 is a schematic diagram illustrating the direction of current flow in a signal layer according to an embodiment of the present invention;

FIG. 23 is a schematic view of a composite anode structure provided in accordance with an embodiment of the present invention in a second state;

FIG. 24 is a schematic view of a composite anode structure provided in accordance with an embodiment of the present invention in a first state;

FIG. 25 is a schematic diagram illustrating the direction of current flow in a signal layer according to an embodiment of the present invention;

FIG. 26 is a schematic cross-sectional view along aa' direction of the composite anode structure in sub-pixel unit spx in the first display area A1 shown in FIG. 4;

FIG. 27 is a schematic cross-sectional view of the signal layer shown in FIG. 6 along the direction BB';

fig. 28 is a schematic top view illustrating a signal layer and a second metal film layer connected in parallel according to an embodiment of the present invention;

FIG. 29 is a schematic cross-sectional view of the signal layer of FIG. 28 along the direction CC';

fig. 30 is a schematic top view of a signal layer connected in parallel to a third metal film layer and a second metal film layer according to an embodiment of the present invention;

FIG. 31 is a schematic cross-sectional view of the signal layer shown in FIG. 30 taken along the direction DD';

FIG. 32 is a schematic view of a composite anode structure in a second state according to an embodiment of the present invention;

FIG. 33 is a schematic view of a composite anode structure in a first state according to an embodiment of the present invention;

FIG. 34 is a schematic view of a composite anode structure in a second state according to an embodiment of the present invention;

FIG. 35 is a schematic view of a composite anode structure in a first state according to an embodiment of the present invention;

FIG. 36 is a schematic view of a composite anode structure in a second state according to an embodiment of the present invention;

FIG. 37 is a schematic view of a composite anode structure in a first state according to an embodiment of the present invention;

fig. 38 is a schematic structural diagram of a display device according to an embodiment of the present invention.

Detailed Description

The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document generally indicates that the preceding and following related objects are in an "or" relationship unless otherwise specified.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In order to better understand the technical solutions of the present invention, the technical solutions of the present invention are described in detail below with reference to the drawings and the specific embodiments, and it should be understood that the specific features in the embodiments and the embodiments of the present invention are detailed descriptions of the technical solutions of the present invention, and are not limitations of the technical solutions of the present invention, and the technical features in the embodiments and the embodiments of the present invention may be combined with each other without conflict. Also, the shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the present invention.

In the implementation process, fig. 2 is a schematic top view of the display device area 1, and fig. 3 is a schematic cross-sectional structure along the AA' direction of the display device area 1. As shown in fig. 2 and 3, in general, the display device area 1 may include: the organic light emitting diode array comprises an organic light emitting diode 11 positioned on an array substrate 10, an encapsulation layer 12 positioned on the organic light emitting diode 11, and an optical electronic element 100 positioned on the side of the array substrate 10 away from the organic light emitting diode 11. The organic light emitting diode 11 includes an anode 01, a light emitting layer 02, and a cathode 03, which are stacked.

In practical applications, the ambient light S enters the optoelectronic device 100 after passing through the region 1, so as to form an image on the optoelectronic device 100. However, since the anode 01 in the organic light emitting diode 11 is generally disposed as an opaque electrode, the light received by the optoelectronic device 100 is less, and the imaging quality is poor.

To this end, the embodiment of the invention provides a display panel for improving the imaging quality of the optoelectronic element 10.

In a specific implementation process, fig. 4 is a schematic top view structure diagram of a display panel according to an embodiment of the invention, and fig. 5 is a schematic cross-sectional structure diagram of the composite anode structure 30 along the aa' direction in the sub-pixel unit spx in the first display area a1 shown in fig. 4. Specifically, the display panel includes: a first display area a1 and a second display area a 2. The first display area a1 is a region corresponding to the optoelectronic device and capable of displaying in the display area a, and the second display area a2 is a display area other than the first display area a1 in the display area a. In the embodiment of the present invention, the first display area a1 and the second display area a2 respectively include pixel units PX, and the pixel units PX include a plurality of sub-pixels spx. The first display region a1 includes the light emitting device 20, and the light emitting device 20 includes the composite anode structure 30. The composite anode structure 30 includes a first electrode layer 301, a function adjusting layer 300, and a second electrode layer 302 sequentially stacked in a direction perpendicular to the display panel and directed toward the light emitting surface of the light emitting device 20, wherein the function adjusting layer 300 includes a plurality of silver nanorods 3000. The composite anode structure 30 includes a first state D1 and a second state D2, the composite anode structure 30 having a transmittance in the first state D1 that is greater than the transmittance in the second state D2. That is, flexible switching of the composite anode structure 30 between the first state D1 and the second state D2 is achieved by the function adjusting layer 300 including the plurality of silver nanorods 3000. And, the transmittance of the composite anode structure 30 corresponding to the first display region a1 in the first state D1 is greater than the transmittance in the second state D2.

According to the display panel provided by the embodiment of the invention, the function adjusting layer 300 is arranged in the composite anode structure 30, the plurality of silver nanorods 3000 are arranged in the function adjusting layer 300, and due to the fact that the transmittance of the composite anode structure 30 in the first state D1 is larger than that in the second state D2 under the adjusting action of the plurality of silver nanorods 3000, when the composite anode structure 30 is in the first state D1, the quantity of light entering an optical electronic element from the first display area A1 is larger, and therefore the imaging quality is improved, and when the composite anode structure 30 is in the second state D2, the display panel can normally display, user embodiment is not influenced, and a full-screen is realized.

In the embodiment of the present invention, the first display region a1 and the second display region a2 may form a continuous display region a, so that the first display region a1 and the second display region a2 may both display images. Illustratively, the shape of the display area a is approximately rectangular, for example, if the corners of the display area a are all right angles, the display area a is rectangular. For another example, if the top corner of the display area a is an arc-shaped corner, the shape of the display area a is approximately rectangular.

In a specific implementation, the first display area a1 may be one or more. The second display area a2 may be a continuous area, or the second display area a2 may also be a discontinuous area, which may be designed according to the actual application environment, and is not limited herein.

In a specific implementation, the relative positional relationship between the first display region a1 and the second display region a2 may be such that at least a portion of the edges of the first display region a1 coincide with at least a portion of the edges of the display region a, and the remaining portion of the first display region a1 is surrounded by the second display region a2, such that the first display region a1 may be disposed at the edge of the display region a.

In a specific implementation, the relative position relationship between the first display area a1 and the second display area a2 may be such that the second display area a2 surrounds the first display area a1, and thus, the first display area a1 may be disposed inside the display area a. For example, the first display region a1 may be disposed at the upper left corner of the second display region a 2. For another example, the first display region a1 may be disposed at the upper right corner of the second display region a 2. For another example, the first display region a1 may be disposed at the left side of the second display region a 2. For another example, the first display area a1 may be disposed at an upper side of the second display area a 2. Of course, in practical applications, the specific position of the first display area a1 may be determined according to practical application environments, and is not limited herein.

In a specific implementation, the shape of the first display area a1 may be a regular shape, such as a rectangle, and the top corner of the rectangle may be a right angle, or the top corner of the rectangle may also be an arc-shaped corner. For another example, the shape of the first display area a1 may be a trapezoid, which may be a regular trapezoid or an inverted trapezoid. In addition, the top angle of the trapezoid can be a regular included angle or can also be an arc-shaped angle. For another example, the shape of the first display area a1 may be set to an irregular shape. For example, the first display area a1 may be shaped in a drop shape. Of course, in practical applications, the shape of the first display area a1 may be designed according to the shape of the elements disposed in the first display area a1, and is not limited herein.

In a specific implementation, the area of the first display region a1 is smaller than the area of the second display region a 2. Of course, in practical applications, the design may be performed according to the elements disposed in the first display area a1, and is not limited herein.

In the embodiment of the present invention, the relative position relationship and the shape of the first display area a1 and the second display area a2 are not limited, and may be specifically set according to the screen design of the display device. Taking a mobile phone as an example, the first display area a1 may be disposed at the upper left corner of the display area a, and the first display area a1 may also be disposed at the upper right corner of the display area a. Set up the camera in the corner, can utilize first display area A1 to carry out simple and easy swift function service such as display time, weather, information warning.

In a specific implementation, the light emitting device 20 may include: at least one of Organic Light Emitting Diodes (OLEDs) and Quantum Dot Light Emitting Diodes (QLEDs).

In the embodiment of the present invention, the material of the first electrode layer 301 and the second electrode layer 302 may be at least one of Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), and graphene. Of course, in practical applications, the first electrode layer 301 and the second electrode layer 302 may also be designed by selecting corresponding materials according to practical application environments, which is not limited herein. In addition, the first electrode layer 301 and the second electrode layer 302 may be set in a transparent state, thereby improving the transmittance of the composite anode structure 30.

In the embodiment of the present invention, as shown in fig. 6, the display panel provided in the embodiment of the present invention includes a schematic top view structure of a signal layer 40, specifically, the display panel further includes the signal layer 40, the signal layer 40 is disposed in the same layer as the composite anode structure 30, an orthogonal projection of the signal layer 40 on a plane of the display panel surrounds an orthogonal projection of the composite anode structure 30 on the plane of the display panel, and the signal layer 40 is a ring-shaped structure having an opening. In one embodiment, electrical signals are provided across the opening of the signal layer 40, such as electrical signals U and U', respectively, to form a current path in the direction of the arrows in the signal layer 40 of fig. 6. In a specific implementation process, the signal layer 40 may be made of a metal layer, or may be made of a film layer made of the same material as the active layer. Optionally, the signal layer 40 may also be electrically connected to a film layer of the same active layer in the display panel, and since the film layer of the same active layer and the same material may utilize the higher resistance of the film layer of the same active layer, the problem of IC (driving chip) short circuit caused by the too high current may be avoided by connecting the signal layer 40 with a higher resistance. The voltage of the signal layer 40 can be increased by the IC, if the resistance of the signal layer 40 is too small and there is no resistance protection, the internal short circuit of the IC is easily caused, the IC is burned out, the signal layer 40 and the film layer of the same layer and the same material of the active layer are electrically connected, the short circuit phenomenon can be prevented, and the signal layer 40 does not need to be additionally connected with the resistance protection.

In the specific implementation process, the signal layer 40 is connected with an electric signal through the opening of the signal layer, and the magnetic field generated by the signal layer 40 connected with the electric signal drives the silver nanorod 3000 to deflect, so that the transmittance of the composite anode structure 30 is adjusted through the deflection of the silver nanorod 3000. The electrical signal may be a pulse signal or a direct current signal.

In the embodiment of the present invention, when the composite anode structure 30 is in the second state D2, the maximum length of the silver nanorods 3000 in the first direction is greater than the maximum length in the second direction; the maximum length of the silver nanorod 3000 in the first direction is within a length range including two ends of the silver nanorod. The first direction is an extending direction of the silver nanorods 3000 in the second state D2, and the second direction is a direction perpendicular to the first electrode layer 301. Fig. 7 is a schematic diagram of the composite anode structure 30 in the second state D2, in which the arrow X represents a first direction and the arrow Y represents a second direction, and when the composite anode structure 30 is in the second state D2, the extending direction of the silver nanorods 3000 is parallel to the first direction, and the second direction is perpendicular to the first electrode layer 301. In the second state D2, the maximum length of the silver nanorods 3000 in the first direction X is greater than the maximum length of the silver nanorods 3000 in the second direction Y, so as to ensure that the maximum length of the silver nanorods 3000 in the first direction X in the first state D1 is less than the maximum length of the silver nanorods 3000 in the second state D2 in the first direction X (i.e., the maximum length of the silver nanorods 3000 in the second direction Y in the first state D1), and at this time, the gaps between the silver nanorods 3000 in the first state D1 are greater than the gaps between the silver nanorods 3000 in the second state D2, so that the transmittance of the composite anode structure 30 can be improved when the composite anode structure is switched from the second state D2 to the first state D1.

In the embodiment of the present invention, the first direction indicates the extending direction of the silver nanorods 3000 in the second state D2, except for the specific description.

In an alternative embodiment, a schematic view of the composite anode structure 30 in the first state D1 is shown in fig. 8, and a schematic view of the composite anode structure 30 in the second state D2 is shown in fig. 9. Referring to fig. 8 and 9, the silver nanorod 3000 includes a first end 3001 and a second end 3002 that are oppositely disposed along a first direction. The silver nanorod 3000 includes a central axis L pointing from a first end to a second end of the same silver nanorod; in the first state D1, the central axis L forms an included angle θ with the plane of the first electrode layer 301₁Wherein 0 degree<θ₁Not more than 90 degrees; in the second state D2, the angle between the central axis L and the plane of the first electrode layer 301 is θ₂Wherein theta₂The angle is 0 degrees, and two adjacent silver nanorods are connected end to end; the first direction is an extending direction of the silver nanorods 2000 in the second state D2. As shown in FIG. 8, in the first state D1, the angle θ between the central axis L and the plane where the first electrode layer 301 is located is₁Is one of the schematic diagrams at 90 degrees. As shown in FIG. 9, in the second state D2, the angle θ between the central axis L and the plane of the first electrode layer 301 is₂Schematic at 0 °. In this embodiment, the central axis L is deflected to adjust the silver nanorods 3000 in the first direction XIn the second state D2, the included angle between the central axis L and the plane of the first electrode layer 301 is θ₂Wherein theta₂At 0 °, the silver nanorods 3000 have a width in the first direction X that is the distance from the first end 3001 to the second end 3002. In the first state D1, the central axis L forms an included angle θ with the plane of the first electrode layer 301₁Wherein 0 degree<θ₁Is less than or equal to 90 degrees, the width of the silver nano-rod 3000 in the first direction X is the distance between the first end 3001 and the second end 3002 and cos theta₁Due to the product of (1), due to 0 °<θ₁Not more than 90 DEG, so that cos theta is not less than 0₁< 1, the width of the silver nanorods 3000 in the first direction X in the first state D1 is smaller than the width of the silver nanorods 3000 in the second state D2 in the first direction X, thereby making it possible to ensure that the transmittance of the composite anode structure 30 in the first state D1 is greater than the transmittance of the composite anode structure 30 in the second state D2. When theta is expressed₁When the angle is 90 °, that is, the included angle between the central axis L and the plane where the first electrode layer 301 is located is 90 °, then cos θ₁At this time, since the silver nanorods 3000 have a certain width in a direction perpendicular to the central axis L, the width of the silver nanorods 3000 in the first direction X is not zero.

In one of the alternative embodiments, in order to realize the deflection of the silver nanorods 3000, at least one end of the silver nanorods 3000 is provided with a magneton, wherein the magneton is a elementary magnet having a single polarity, which is either an N-pole magneton or an S-pole magneton. In a specific implementation process, the situation that the two ends of the silver nanorod 3000 are provided with the magnetons may include, but is not limited to, the following situations.

Optionally, in the first case of setting the magnetons, the magnetons are specifically set at one end of the silver nanorods 3000. Fig. 10 is a schematic diagram of the composite anode structure 30 in the second state D2 according to the first magnetic arrangement provided by the embodiment of the invention; fig. 11 is a schematic diagram of the composite anode structure 30 in the first state D1 according to the first magnetic arrangement provided by the embodiment of the invention; with reference to fig. 10 and 11, specifically, along the first direction, the silver nanorod 3000 includes a first end 3001 and a second end 3002, which are oppositely disposed, the first end 3001 is disposed with the first magneton 50, and the second end 3002 is fixedly connected to the first electrode layer 301.

In a specific implementation, for a specific polarity of the first magneton 50, a corresponding electrical signal is applied to the signal layer 40 to adjust the transmittance of the composite anode structure 30. As shown in fig. 10, if the first magneton 50 is an S-pole magneton, the signal layer 40 has no electrical signal when the composite anode structure 30 is in the second state D2; the silver nanorods 3000 are in a state parallel to the first electrode layer 301 by their own weight, so that the composite anode structure 30 is in the second state D2. As shown in fig. 11, when the composite anode structure 20 is in the first state D1, the current direction of the signal layer 40 is clockwise in the direction from the light-emitting surface of the display panel to the display panel, the first magneton 50 is in an equilibrium state under the magnetic field force generated by the signal layer 40, and the composite anode structure 30 is in the first state D1. Fig. 12 is a schematic diagram illustrating the direction of current flowing in the signal layer 40 when the composite anode structure is in the first state D1, wherein the direction of the arrow in the signal layer 40 is the current flowing direction, and in this case, the direction of the arrow E in fig. 11 represents the direction of the magnetic field generated by the signal layer 40 under the current.

In a specific implementation process, referring to fig. 10 to 12, if the first magnet 50 is an S-pole magnet, in order to realize flexible switching of the composite anode structure 30 between the first state D1 and the second state D2, when the composite anode structure 30 is switched from the second state D2 to the first state D1, the specific adjustment process of the signal layer 40 is to switch the signal layer 40 from no electrical signal to the clockwise current in a direction from the light emitting surface of the display panel to the display panel. That is, when the composite anode structure 30 is switched from the second state D2 shown in fig. 10 to the first state D1 shown in fig. 11, the current in the signal layer 40 is adjusted to the current in the direction shown in fig. 12 by no electrical signal. Thus, when the composite anode structure 30 is in the second state D2 shown in fig. 10, the first magneton 50 in the composite anode structure 30 in the second state D2 shown in fig. 10 deflects the silver nanorod 3000 under the action of the magnetic field by adjusting the current in the signal layer 40 from the no-electrical signal to the current in the direction shown in fig. 12, so as to switch the composite anode structure 30 from the second state D2 shown in fig. 10 to the first state D1 shown in fig. 11.

In a specific implementation process, referring to fig. 10 to 12, if the first magneton 50 is an S-pole magneton, and the composite anode structure 30 is switched from the first state D1 to the second state D2, the current direction of the signal layer 40 is switched from the clockwise current to the no-electrical signal in a direction from the light emitting surface of the display panel to the display panel. That is, when the composite anode structure 30 is switched from the first state D1 shown in FIG. 11 to the second state D2 shown in FIG. 10, the current in the signal layer 40 is adjusted from the current in the direction shown in FIG. 12 to no electrical signal. Thus, when the composite anode structure 30 is in the first state D1 shown in fig. 11, the current in the signal layer 40 is adjusted from the current in the direction shown in fig. 12 to no electrical signal, and the silver nanorods 3000 in the composite anode structure 30 in the first state D1 shown in fig. 11 are parallel to the first electrode layer 301 due to their own weight, so that the composite anode structure 30 is switched from the first state D1 shown in fig. 11 to the second state D2 shown in fig. 10.

In a specific implementation, referring to fig. 10 to 12, the switching of the composite anode structure 30 from the first state D1 to the second state D2 may also be the switching of the signal layer 40 from the clockwise current to the counterclockwise current, that is, when the composite anode structure 30 is in the first state D1 shown in fig. 11, the current in the signal layer 40 is adjusted from the current in the direction shown in fig. 12 to the current in the direction opposite to the direction. The direction of the current flowing through the signal layer 40 at this time is shown in fig. 13. At this time, the magnetic field generated by the signal layer 40 is a magnetic field in a direction opposite to the direction represented by the arrow E in fig. 11. In this way, the first magneton 50 in the composite anode structure 30 in the first state D1 drives the silver nanorod 3000 to deflect under the action of the magnetic field, so that the composite anode structure 30 is in the second state D2 shown in fig. 10.

In the implementation, as shown in fig. 14, a schematic diagram of the composite anode structure 30 in the second state D2 according to the embodiment of the present invention is provided, specifically, if the first magnet 50 is an N-pole magnet, the signal layer 40 has no electrical signal when the composite anode structure 30 is in the second state D2, and the silver nanorods 3000 are parallel to the first electrode layer 301 under the self-gravity, so that the composite anode structure 30 is in the second state D2. Fig. 15 is a schematic diagram of the composite anode structure 30 in the first state D1 according to the embodiment of the present invention, specifically, when the composite anode structure 30 is in the first state D1, the current direction of the signal layer 30 is counterclockwise in the direction from the light emitting surface of the display panel to the display panel, as shown by the arrow in fig. 16. At this time, the direction of the magnetic field generated by the signal layer 40 is the direction indicated by the arrow G in fig. 15.

In a specific implementation process, referring to fig. 14 to 16, if the first magnet 50 is an N-pole magnet, in order to realize flexible switching of the composite anode structure 30 between the first state D1 and the second state D2, when the composite anode structure 30 is switched from the second state D2 to the first state D, a specific adjustment process of the signal layer 40 is that 1, in a direction from the light emitting surface of the display panel toward the display panel, the signal layer 30 is switched from no electrical signal to the counterclockwise current. That is, when the composite anode structure 30 is switched from the second state D2 shown in fig. 14 to the first state D1 shown in fig. 15, the current in the signal layer 40 is adjusted to a current in the direction shown in fig. 16 by no electrical signal. Thus, when the composite anode structure 30 is in the second state D2 shown in fig. 14, the first magneton 50 in the composite anode structure 30 in the second state D2 shown in fig. 14 will deflect the silver nanorod 3000 under the action of the magnetic field by adjusting the current in the signal layer 40 from the no-electrical signal to the current in the direction shown in fig. 16, so as to switch the composite anode structure 30 from the second state D2 shown in fig. 14 to the first state D1 shown in fig. 15.

In a specific implementation process, referring to fig. 14 to 16, if the first magneton 50 is an N-pole magneton, and the composite anode structure 30 is switched from the first state D1 to the second state D2, the counterclockwise current of the signal layer 30 is switched to a no-electrical signal from the light-emitting surface of the display panel to the display panel. That is, when the composite anode structure 30 is switched from the first state D1 shown in fig. 15 to the second state D2 shown in fig. 14, the direction of the current in the signal layer 40 is adjusted from the current in the direction shown in fig. 16 to no electrical signal. Thus, when the composite anode structure 30 is in the first state D1 shown in fig. 15, the current in the signal layer 40 is adjusted from the current in the direction shown in fig. 16 to no electrical signal, and the silver nanorods 3000 in the composite anode structure 30 in the first state D1 shown in fig. 15 are in a state parallel to the first electrode layer 201 under the self-gravity, so that the composite anode structure 30 is switched from the first state D1 shown in fig. 15 to the first state D1 shown in fig. 14.

In a specific implementation, referring to fig. 14 to 16, when the composite anode structure 30 is switched from the first state D1 to the second state D2, it is also possible that the signal layer 30 is switched from the counter-clockwise current to the clockwise current, that is, when the composite anode structure 30 is in the first state D1 shown in fig. 15, the current in the signal layer 40 is adjusted from the direction shown in fig. 16 to the current opposite to the direction. At this time, the magnetic field generated by the signal layer 40 is a magnetic field in a direction opposite to the direction represented by the arrow G in fig. 15. In this way, the first magneton 50 in the composite anode structure 30 in the first state D1 drives the silver nanorod 3000 to deflect under the action of the magnetic field, so that the composite anode structure 30 is in the second state D2 shown in fig. 14.

Optionally, the second set of magnetons is specifically set at two ends of the silver nanorod 3000. Fig. 17 is a schematic diagram of the composite anode structure 30 in the second state D2 according to the first magnetic arrangement provided by the embodiment of the invention; fig. 18 is a schematic diagram of the composite anode structure 30 in the first state D1 according to the first magnetic arrangement provided by the embodiment of the invention; as shown in fig. 17 to 19, the second end 3002 of the silver nanorod 3000 is provided with the second magneton 60, and the second magneton 60 is opposite to the first magneton 50 in magnetism. At this time, the silver nanorod 3000 and the first and

second magnetons

50 and 60 may be understood as a magnet, wherein a side near the first end 3001 has opposite magnetism to a side near the second end 3002, wherein the second magneton 60 is an N-pole magneton, the first magneton 50 is an S-pole magneton, and at this time, the first end 3001 of the silver nanorod 3000 is an S-pole, and the second end 3002 of the silver nanorod 3000 is an N-pole. In the specific implementation process, in order to realize flexible switching of the composite anode structure 30 between the first state D1 and the second state D2, in the case of the arrangement of the magnetic particles of the silver nanorods 3000 shown in fig. 17 and 18, the composite anode structure 30 is switched from the second state D2 to the first state D1, and the specific adjustment process of the signal layer 40 is to switch the signal layer 40 from no electrical signal to clockwise current (direction shown by arrow in fig. 19) in the direction from the light-emitting surface of the display panel to the display panel; in this way, the magnetons at two ends of the silver nanorods 3000 in the composite anode structure 30 in the second state D2 shown in fig. 17 are used to deflect the silver nanorods 3000 under the action of the magnetic field generated by the signal layer 40, so that the composite anode structure 30 is switched from the second state D2 shown in fig. 17 to the first state D1 shown in fig. 18.

In the implementation process, still referring to fig. 17 to fig. 19, the composite anode structure 30 is switched from the first state D1 shown in fig. 18 to the second state D2 shown in fig. 17, and the signal layer 40 is switched from the clockwise current (the direction shown by the arrow in fig. 19) to the no-electric signal from the light emitting surface of the display panel toward the display panel. In this way, the silver nanorods 3000 in the composite anode structure 30 in the first state D1 shown in fig. 18 are deflected to a state parallel to the first electrode layer 301 by the self-gravity and the attraction of the adjacent magnetons, so that the composite anode structure 30 is switched from the first state D1 shown in fig. 18 to the second state D2 shown in fig. 17.

In an embodiment, still referring to fig. 17 to fig. 19, the composite anode structure 30 is switched from the first state D1 shown in fig. 18 to the second state D2 shown in fig. 17, or may be switched from the clockwise current to the counterclockwise current in the signal layer 40 from the light emitting surface of the display panel toward the display panel, for example, the current direction in the signal layer 40 at this time is switched to the direction opposite to the arrow direction shown in fig. 19. As such, the silver nanorods 3000 in the composite anode structure 30 in the first state D1 are deflected by the magnetic field force, so that the composite anode structure 30 is switched from the first state D1 shown in fig. 18 to the second state D2 shown in fig. 17.

In a specific implementation, if the second magneton 60 is an S-pole magneton, the first magneton 50 is an N-pole magneton. Fig. 20 is a schematic view of the composite anode structure 30 in the second state D2 according to the embodiment of the present invention; fig. 21 is a schematic view of the composite anode structure 30 in the first state D1 according to the embodiment of the present invention; in the implementation process, in order to realize flexible switching of the composite anode structure 30 between the first state D1 and the second state D2, in the case of the arrangement of the magnetic particles of the silver nanorod 3000 shown in fig. 20 and 21, the signal layer 40 is specifically adjusted such that the composite anode structure 30 is switched from the second state D2 to the first state D1, and the signal layer 40 is switched from the no-electrical signal to the counter-clockwise current (the direction shown by the arrow in fig. 22) in the direction from the light-emitting surface of the display panel to the display panel; in this way, the magnetons at two ends of the silver nanorods 3000 in the composite anode structure 30 in the second state D2 shown in fig. 20 are used to deflect the silver nanorods 3000 under the action of the magnetic field generated by the signal layer 40, so that the composite anode structure 30 is switched from the second state D2 shown in fig. 20 to the first state D1 shown in fig. 21.

In the implementation process, still referring to fig. 20 to fig. 22, the composite anode structure 30 is switched from the first state D1 shown in fig. 21 to the second state D2 shown in fig. 20, and the signal layer 40 is switched from the counter-clockwise current (the direction shown by the arrow in fig. 22) to a no-electric signal in the direction from the light emitting surface of the display panel to the display panel. In this way, the silver nanorods 3000 in the composite anode structure 30 in the first state D1 shown in fig. 21 are deflected to a state parallel to the first electrode layer 301 by the self-gravity and the attraction of the adjacent magnetic molecules, so that the composite anode structure 30 is switched from the first state D1 shown in fig. 21 to the second state D2 shown in fig. 20.

In the embodiment of the present invention, still referring to fig. 20 to fig. 22, the composite anode structure 30 is switched from the first state D1 shown in fig. 21 to the second state D2 shown in fig. 20, and may also be switched from the counter-clockwise current to the clockwise current in a direction from the light emitting surface of the display panel toward the display panel in the signal layer 40. Such as switching the direction of the current in the signal layer 40 at this time to the opposite direction of the arrow shown in fig. 22. In this way, the first silver nanorods 3000 are deflected by the magnetic field force, so that the composite anode structure 30 is switched from the first state D1 shown in fig. 21 to the second state D2 shown in fig. 20.

In the embodiment of the present invention, when both ends of the silver nanorod 3000 are provided with magnetons and neither end is fixed to the electrode layer, for example, the first magneton 50 is an S-pole magneton, and the second magneton 60 is an N-pole magneton. Fig. 23 is a schematic view of the composite anode structure 30 in the second state D2 according to the embodiment of the present invention; fig. 24 is a schematic view of the composite anode structure 30 in the first state D1 according to the embodiment of the present invention; in the specific implementation process, in order to realize the flexible switching of the composite anode structure 30 between the first state D1 and the second state D2, in the case of the arrangement of the magnetic electrons of the silver nanorods 3000 shown in fig. 23 and 24, the composite anode structure 30 is switched from the second state D2 shown in fig. 23 to the first state D1 shown in fig. 24, and the specific adjustment process of the signal layer 40 is to switch the signal layer 40 from no electrical signal to clockwise current (as shown by the arrow in fig. 25) in the direction from the light emitting surface of the display panel to the display panel; specifically, when the composite anode structure 20 is in the second state D2 shown in fig. 23, the magnetons at both ends of the silver nanorods 3000 are in an end-to-end state by opposite attraction. Once the signal layer 40 is energized with a clockwise current (as shown by the arrow in fig. 25), the first magneton 50 deflects toward the side close to the second electrode layer 302 under the action of the magnetic field force, the second magneton 60 deflects toward the side close to the first electrode layer 301, and when the magnetic field force applied to the silver nanorod 3000 is opposite to the gravity in the same direction, the silver nanorod 3000 is in a balanced state, so that the composite anode structure 30 is switched from the second state D2 shown in fig. 23 to the first state D1 shown in fig. 24.

In the specific implementation process, still referring to fig. 23 to fig. 25, when the composite anode structure 30 is in the first state D1 shown in fig. 24, once the signal layer 40 is energized with a current in a counterclockwise direction (opposite to the direction indicated by the arrow in fig. 25), at this time, the first magneton 50 is deflected to a side away from the first electrode layer 301 by the magnetic field force, the second magneton 60 is deflected to a side away from the second electrode layer 302 by the magnetic field force, and when the silver nanorods 3000 are in the end-to-end equilibrium state, the signal layer 40 is adjusted to be in the no-signal state, so that the composite anode structure 30 is switched from the first state D1 shown in fig. 24 to the second state D2 shown in fig. 23. Of course, the skilled person can use the signal layer 40 with different magnetic properties and different electrical signals to realize the flexible switching between the first state D1 and the second state D2 of the composite anode structure 30 according to the actual requirement, and the description is not repeated here.

In an embodiment of the present invention, as shown in fig. 26, which is a schematic cross-sectional structure view of the composite anode structure 30 along the aa' direction in the sub-pixel unit spx in the first display area a1 shown in fig. 4, in order to support the space between the first electrode layer 301 and the second electrode layer 302 and improve the usability of the display panel, at least two column structures 3003 are disposed between the first electrode layer 301 and the second electrode layer 302, opposite ends of the column structures 3003 are respectively in contact with the first electrode layer 301 and the second electrode layer 302, and the material of the column structures 3003 may be silver or gold. Further, in order to improve the diversified design of the composite anode structure 30, the sectional shape of the columnar structure 3003 along a plane parallel to the first electrode layer 301 includes at least one of a trapezoid, a rectangle, a circle, and a triangle.

In the embodiment of the invention, in order to improve the adjustment capability of the display panel for the transmittance of the composite anode structure 30, the use performance of the display panel is improved. In a specific implementation process, the display panel further includes at least one metal film layer connected in parallel with the signal layer 40, and the at least one metal film layer may be at least one of the first metal film layer M1, the second metal film layer M2, the third metal film layer M3, and the metal film layer MC. After being connected in parallel with at least one layer of metal film layer through signal layer 40, the resistance value of signal layer 40 has been reduced, when providing the signal of telecommunication of the same numerical value size for signal layer 40, the produced magnetic field intensity of signal layer 40 is great, thereby the effective control to the deflection of silver nanorod 3000 has been guaranteed, the nimble adjustment of display panel to composite anode structure 30 transmissivity has been guaranteed, simultaneously, signal layer 40 also can be connected with the rete on the same layer of active layer in the display panel electrically, because the rete on the same layer of active layer with the material can utilize the resistance of active layer great, can save and prevent the too big IC (drive chip) short circuit problem that leads to of electric current for signal layer 40 connects great resistance. The voltage of the signal layer 40 can be increased by the IC, if the resistance of the signal layer 40 is too small and there is no resistance protection, the internal short circuit of the IC is easily caused, the IC is burned out, the signal layer 40 and the film layer of the same layer and the same material of the active layer are electrically connected, the short circuit phenomenon can be prevented, and the signal layer 40 does not need to be additionally connected with the resistance protection. Fig. 27 is a cross-sectional view of the signal layer 40 along BB' shown in fig. 6, in which reference numeral 70 denotes an optoelectronic device, reference numeral 80 denotes an array substrate, and reference numeral 90 denotes a planarization layer.

In the implementation, fig. 28 shows another top view of the display panel when the signal layer 40 is connected in parallel with the second metal film layer M2. It should be noted that the relative position relationship between the signal layer 40 and the second metal film layer M2 in the direction perpendicular to the display panel is not limited in fig. 28, and is only exemplary. Fig. 29 is a cross-sectional view of the display panel of fig. 28 along CC', wherein the reference numeral 110 denotes a second metal film layer.

In this embodiment, as shown in fig. 30, another top view of the display panel is shown when the signal layer 40 is connected in parallel with the third metal film layer M3 and the second metal film layer M2. It should be noted that, in fig. 30, the relative position relationship of the signal layer 40, the second metal film layer 110 and the third metal film layer 120 in the direction perpendicular to the display panel is not limited. Fig. 31 is a cross-sectional view of the display panel shown in fig. 30 along line DD', where reference numeral 120 denotes a third metal film layer M3, and reference numeral 130 denotes a bending protection layer.

In the embodiment of the present invention, in order to achieve effective control of deflection of the silver nanorods 3000 by the magnetic field generated by the signal layer 40, the extension length of the silver nanorods 3000 in the first direction is greater than or equal to 100 nm.

In the embodiment of the present invention, in order to realize the diversified design of the silver nanorods 3000, the shape of the silver nanorods 3000 includes at least one of a dumbbell shape, a rod shape, and a shuttle shape. Each of the silver nanorods 3000 in the composite anode structure 30 may be the same shape or may be different shapes. When the silver nanorod 3000 is dumbbell-shaped, the contact area between the two ends of the silver nanorod 3000 and the electrode layer can be increased due to the dumbbell-shaped silver nanorod 3000, so that the contact stability between the silver nanorod 3000 and the electrode layer is ensured, and the service performance of the display panel is improved.

In some of the alternative embodiments, in order to achieve deflection of the silver nanorods 3000, at least one end of the silver nanorods 3000 is provided with a charge, which is either positive or negative. In a specific implementation process, the situation that the charges are set at the two ends of the silver nanorod 3000 may include, but is not limited to, the following situations.

Alternatively, the first charge setting case is specifically to set a charge at one end of the silver nanorod 3000. Fig. 32 is a schematic view of the composite anode structure 30 in the second state D2 according to the embodiment of the present invention; fig. 33 is a schematic view of the composite anode structure 30 in the first state D1 according to the embodiment of the present invention; referring to fig. 32 and 33, particularly along the first direction, the silver nanorod 3000 includes a first end 3001 and a second end 3002 that are oppositely disposed; the first end 3001 is provided with positive charges p and the second end 3002 is fixedly connected to the first electrode layer 301. Wherein the first direction is the extending direction of the silver nanorods 3000 in the second state D2 of the composite anode structure 30. As shown in fig. 32, when the composite anode structure 30 is in the second state D2, the silver nanorods 3000 are in a state parallel to the first electrode layer 301 by their own weight, so that the composite anode structure 30 is in the second state D2. As shown in fig. 33, when the composite anode structure 30 is in the first state D1, the first electrode layer 301 receives the first voltage V1, the second electrode layer 302 receives the second voltage V2, the first voltage V1 is greater than the second voltage V2, the positive charges p provided at the first end 3001 are in an equilibrium state under the action of the electric field force generated by the first electrode layer 301 and the second electrode layer 302, and the composite anode structure 30 is in the first state D1. At this time, the direction of an arrow F in fig. 33 represents the direction of the electric field generated by the first electrode layer 301 and the second electrode layer 302 at the present voltage.

In a specific implementation process, referring to fig. 32 to 33, if the first end 3001 is provided with positive charges p, in order to realize flexible switching of the composite anode structure 30 between the first state D1 and the second state D2, when the composite anode structure 30 is switched from the second state D2 to the first state D1, a specific adjustment process of the electric field between the first electrode layer 301 and the second electrode layer 302 is to switch the first electrode layer 301 to a state where the first voltage V1 of the first electrode layer 301 is greater than the second voltage V2 of the second electrode layer 302 without applying a voltage to the first electrode layer 301 and the second electrode layer 302. That is, when the composite anode structure 30 is switched from the second state D2 shown in fig. 32 to the first state D1 shown in fig. 33, an electric field in the direction indicated by the arrow F in fig. 33 is generated between the first electrode layer 301 and the second electrode layer 302, and the positive charges p in the composite anode structure 30 in the second state D2 shown in fig. 32 will deflect the silver nanorods 3000 under the action of the magnetic field, so as to switch the composite anode structure 30 from the second state D2 shown in fig. 32 to the first state D1 shown in fig. 33.

In a specific implementation process, still referring to fig. 32 and 33, if the first end 3001 is provided with positive charges p, in order to realize flexible switching of the composite anode structure 30 between the first state D1 and the second state D2, when the composite anode structure 30 is switched from the first state D1 to the second state D2, a specific adjustment process of the electric field between the first electrode layer 301 and the second electrode layer 302 is to switch from a state where the first voltage V1 of the first electrode layer 301 is greater than the second voltage V2 of the second electrode layer 302 to a state where no voltage is applied to the first electrode layer 301 and the second electrode layer 302. That is, when the composite anode structure 30 is switched from the first state D1 shown in fig. 33 to the second state D2 shown in fig. 32, no electric field is applied to the first electrode layer 301 and the second electrode layer 302. By doing so, the silver nanorods 3000 in the composite anode structure 30 in the first state D1 shown in fig. 33 are in a state parallel to the first electrode layer 301 by their own weight, thereby switching the composite anode structure 30 from the first state D1 shown in fig. 33 to the second state D2 shown in fig. 32.

In a specific implementation process, referring to fig. 32 and 33, the composite anode structure 30 is switched from the first state D1 to the second state D2, and the voltage relationship between the first electrode layer 301 and the second electrode layer 302 can be further adjusted from the first voltage V1 being greater than the second voltage V2 to the first voltage V1 being less than the second voltage V2. That is, when the composite anode structure 30 is in the first state D1 as shown in fig. 33, the electric field between the first electrode layer 301 and the second electrode layer 302 is adjusted from the direction shown in fig. 33 to an electric field in the opposite direction to the direction. In this way, the positive charges p in the composite anode structure 30 in the first state D1 drive the silver nanorods 3000 to deflect under the action of the electric field, so that the composite anode structure 30 is in the second state D2 shown in fig. 32.

In specific implementation, fig. 34 is a schematic view of the composite anode structure 30 in the second state D2 according to the embodiment of the present invention, and fig. 35 is a schematic view of the composite anode structure 30 in the first state D1 according to the embodiment of the present invention; referring to fig. 34 and 35, specifically, along the first direction, the silver nanorod 3000 includes a first end 3001 and a second end 3002 that are oppositely disposed; the first end 3001 is provided with negative charges n, and the second end 3002 is fixedly connected to the first electrode layer 301. Wherein the first direction is an extending direction of the silver nanorods 3000 in the second state D2 of the composite anode structure 30. As shown in fig. 34, when the composite anode structure 30 is in the second state D2, the silver nanorods 3000 are in a state parallel to the first electrode layer 301 by their own weight, so that the composite anode structure 30 is in the second state D2. As shown in fig. 35, in the first state D1 of the composite anode structure 30, the first electrode layer 301 receives a third voltage V3, the second electrode layer 302 receives a fourth voltage V4, and the third voltage V3 is less than the fourth voltage V4; the negative charge n provided at the first end 3001 is in an equilibrium state under the action of the electric field force generated by the first electrode layer 301 and the second electrode layer 302, and makes the composite anode structure 30 in the first state D1. At this time, the direction of an arrow H in fig. 35 represents the direction of the electric field generated by the first electrode layer 301 and the second electrode layer 302 at the present voltage.

In a specific implementation process, referring to fig. 34 and 35, if the first end 3001 is provided with negative charges n, in order to realize flexible switching of the composite anode structure 30 between the first state D1 and the second state D2, when the composite anode structure 30 is switched from the second state D2 to the first state D1, a specific adjustment process of the electric field between the first electrode layer 301 and the second electrode layer 302 is to switch from a state where no voltage is applied to the first electrode layer 301 and the second electrode layer 302 to a state where the third voltage V3 of the first electrode layer 301 is less than the fourth voltage V4 of the second electrode layer 302. That is, when the composite anode structure 30 is switched from the second state D2 shown in fig. 34 to the first state D1 shown in fig. 35, an electric field in the direction indicated by the arrow H in fig. 35 is generated between the first electrode layer 301 and the second electrode layer 302, and the electrically-driven silver nanorods 3000 are deflected by the electric field by the negative charge n in the composite anode structure 30 in the second state D2 shown in fig. 34, so that the composite anode structure 30 is switched from the second state D2 shown in fig. 34 to the first state D1 shown in fig. 35.

In a specific implementation process, referring to fig. 34 and 35, if the first end 3001 is provided with negative charges n, so as to realize the flexible switching of the composite anode structure 30 between the first state D1 and the second state D2, and when the composite anode structure 30 is switched from the first state D1 to the second state D1, the specific adjustment process of the electric field between the first electrode layer 301 and the second electrode layer 301 is to switch from a state where the third voltage V3 of the first electrode layer 301 is smaller than the fourth voltage V4 of the second electrode layer 302 to a state where no voltage is applied to the first electrode layer 301 and the second electrode layer 302. That is, when the composite anode structure 30 is switched from the first state D1 shown in fig. 35 to the second state D2 shown in fig. 34, no electric field is applied to the first electrode layer 301 and the second electrode layer 302. In this way, the silver nanorods 3000 in the composite anode structure 30 in the first state D1 shown in fig. 35 are in a state parallel to the first electrode layer 301 due to their own weight, so that the composite anode structure 30 is switched from the first state D1 shown in fig. 35 to the second state D2 shown in fig. 34.

In a specific implementation process, referring to fig. 34 and 35, the composite anode structure 30 is switched from the first state D1 to the second state D2, and the voltage relationship between the first electrode layer 301 and the second electrode layer 302 can be further adjusted from the third voltage V3 being smaller than the fourth voltage V4 to the third voltage V3 being larger than the fourth voltage V4. That is, when the composite anode structure 30 is in the first state D1 as shown in fig. 35, the electric field between the first electrode layer 301 and the second electrode layer 302 is adjusted by the direction shown in fig. 35 to an electric field in the direction opposite to the direction. In this way, the negative charges n in the composite anode structure 30 in the first state D1 drive the silver nanorods 3000 to deflect under the action of the electric field, so that the composite anode structure 30 is in the second state D2 shown in fig. 34.

Optionally, in the second charge setting case, specifically, when both ends of the silver nanorod 3000 are provided with a magnetic particle, and neither end is fixed to the electrode layer, as shown in fig. 36, a schematic diagram of the composite anode structure 30 in the second state D2 in the second charge setting case provided in the embodiment of the present invention is shown, and as shown in fig. 37, a schematic diagram of the composite anode structure 30 in the first state D1 in the second charge setting case provided in the embodiment of the present invention is shown; as shown in fig. 36 and 37, the silver nanorod 3000 includes a first end 3001 and a second end 3002 which are oppositely disposed along a first direction, wherein the first direction is an extending direction of the silver nanorod 3000 in the second state D2. Specifically, the first end 3001 of the silver nanorod 3000 is provided with a positive charge p, and the second end 3002 of the silver nanorod 3000 is provided with a negative charge n. Specifically, in the first state D1 shown in fig. 37 of the composite anode structure 30, the first electrode layer 301 receives a fifth voltage V5, the second electrode layer 302 receives a sixth voltage V6, the fifth voltage V5 is not equal to the sixth voltage V6;

in a specific implementation process, in order to realize flexible switching of the composite anode structure 30 between the first state D1 and the second state D2, in the case of charge setting of the silver nanorods 3000 shown in fig. 36 and 37, the composite anode structure 30 is switched from the second state D2 shown in fig. 36 to the first state D1 shown in fig. 37, and the fifth voltage V5 received by the first electrode layer 301 is greater than the sixth voltage V6 received by the second electrode layer 302 due to no applied electric field between the first electrode layer 301 and the second electrode layer 302. Specifically, when the composite anode structure 30 is in the second state D2 shown in fig. 36, the charges at the two ends of the silver nanorods 3000 are in an end-to-end state through opposite attraction. Once the first electrode layer 301 and the second electrode layer 302 are applied with an electric field, and the fifth voltage V5 is greater than the sixth voltage V6, the positive charges p are deflected to the side close to the second electrode layer 302 under the action of the electric field force, the negative charges n are deflected to the side close to the first electrode layer 301, and when the electric field force applied to the silver nanorods 3000 is opposite to the gravity in the same direction, the silver nanorods 3000 are in a balanced state, so that the composite anode structure 30 is switched from the second state D2 shown in fig. 36 to the first state D1 shown in fig. 37.

In a specific implementation process, still referring to fig. 36 and 37, when the composite anode structure 30 is in the first state D1 shown in fig. 37, once the direction of the electric field between the first electrode layer 301 and the second electrode layer 302 is changed, for example, the fifth voltage V5 is controlled to be smaller than the sixth voltage V6, at this time, the positive charges p are deflected away from the second electrode layer 302 by the electric field force, the negative charges n are deflected away from the first electrode layer 301 by the electric field force, and when the silver nanorods 3000 are in the head-to-tail equilibrium state, the first electrode layer 301 and the second electrode layer 302 are in the state of no electric field applied, so that the composite anode structure 30 is switched from the first state D1 shown in fig. 37 to the second state D2 shown in fig. 36. Of course, those skilled in the art can use different polarity charges and different electric fields between the first electrode layer 301 and the second electrode layer 302 to realize flexible switching between the first state D1 and the second state D2 for the composite anode structure 30 according to actual needs, and this is not illustrated here.

Based on the same inventive concept, an embodiment of the present invention also provides a display device, as shown in fig. 38, including the display panel 200 as described above; in a specific implementation, the display device comprises a first mode and a second mode, when the display device is in said first mode, the composite anode structure 30 is in the first state D1; when the display device is in said second mode, the composite anode structure 30 is in a second state D2. The principle of the display device to solve the problem is similar to the display panel, so the implementation of the display device can be referred to the implementation of the display panel, and repeated details are not repeated.

In the embodiment of the present invention, the display apparatus further includes an optical electronic element 400, the optical electronic element 400 is located in the first display region a1, and the optical electronic element 400 is located on a side of the light emitting device 30 away from the light emitting surface of the display panel. In a specific implementation, the optical electronics 400 includes at least one of an optical sensor, a distance sensor, a camera, an earpiece, an iris recognition sensor, and a depth sensor. Of course, those skilled in the art can select the corresponding optoelectronic component 400 according to actual needs, and the detailed description is omitted here.

In a specific implementation, upon detecting that the optoelectronic element 400 is activated and in an operational state, the display device is in a first mode, in which the composite anode structure 30 is in a first state D1. Upon detecting that the optoelectronic element 400 is not activated and is in an inactive state, the display device is in a second mode, in which the composite anode structure 30 is in a second state.

In a specific implementation process, the display device provided in the embodiment of the present invention may be a mobile phone as shown in fig. 31, and certainly, the display device provided in the embodiment of the present invention may also be any product or component having a display function, such as a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator. Other essential components of the display device are understood by those skilled in the art, and are not described herein nor should they be construed as limiting the present invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A display panel, comprising:

a first display area and a second display area;

2. The display panel of claim 1, wherein the display panel further comprises a signal layer, the signal layer is disposed in the same layer as the composite anode structure, and an orthographic projection of the signal layer on a plane of the display panel surrounds an orthographic projection of the composite anode structure on a plane of the display panel, and the signal layer is a ring-shaped structure having an opening.

3. The display panel of claim 2, wherein the signal layer receives an electrical signal through the opening, and the silver nanorods are deflected by a magnetic field generated by the signal layer receiving the electrical signal.

4. The display panel of claim 3,

when the composite anode structure is in the second state, the maximum length of the silver nanorods along the first direction is greater than that along the second direction;

the first direction is the extending direction of the silver nanorods in the second state, and the second direction is the direction perpendicular to the first electrode layer.

5. The display panel of claim 1,

along a first direction, the silver nanorod comprises a first end and a second end which are oppositely arranged;

the silver nanorods comprise a central axis pointing from the first end to the second end of the same silver nanorod;

in the first state, the included angle between the central axis and the plane where the first electrode layer is located is theta₁Wherein 0 degree<θ₁≤90°；

In the second state, the included angle between the central axis and the plane where the first electrode layer is located is theta₂Wherein theta₂＝0°；

The first direction is an extending direction of the silver nanorods in the second state.

6. The display panel of claim 1,

the first end is provided with a first magneton, and the second end is fixedly connected with the first electrode layer;

7. The display panel of claim 6, wherein the second end is provided with a second magneton, the second magneton being opposite in magnetism to the first magneton.

8. The display panel of claim 6, wherein if the first magneton is an S-pole magneton, the signal layer has no electrical signal when the composite anode structure is in the second state; and when the composite anode structure is in the first state, the current direction of the signal layer is clockwise from the light-emitting surface of the display panel to the display panel.

9. The display panel according to claim 6, wherein if the first magneton is an N-pole, the signal layer has no electrical signal when the composite anode structure is in the second state; and when the composite anode structure is in the first state, the current direction of the signal layer is in a counterclockwise direction from the light-emitting surface of the display panel to the display panel.

10. The display panel of claim 8,

when the composite anode structure is switched from the second state to the first state, the signal layer is switched from no electric signal to the clockwise current in a direction from the light-emitting surface of the display panel to the display panel;

when the composite anode structure is switched from the first state to the second state, the current direction of the signal layer is switched from the clockwise current to the no-electric signal or from the clockwise current to the counterclockwise current in the direction from the light emitting surface of the display panel to the display panel.

11. The display panel according to claim 9, wherein the composite anode structure is switched from the second state to the first state, and the signal layer is switched from no electrical signal to the counter-clockwise current in a direction from a light emitting surface of the display panel toward the display panel; the composite anode structure is switched from the first state to the second state, and the signal layer is switched from the counterclockwise current to the no-electric signal or from the counterclockwise current to the clockwise current in the direction from the light emitting surface of the display panel to the display panel.

12. The display panel according to claim 7, wherein the composite anode structure is switched from the second state to the first state, and the signal layer is switched from no electrical signal to clockwise current in a direction from a light emitting surface of the display panel to the display panel; the composite anode structure is switched from the first state to the second state, and the signal layer is switched from the clockwise current to a no-electric signal or from the clockwise current to a counter-clockwise current in a direction from a light-emitting surface of the display panel to the display panel;

or, the composite anode structure is switched from the second state to the first state, and the signal layer is switched from no electric signal to counterclockwise current in a direction from the light-emitting surface of the display panel to the display panel; the composite anode structure is switched from the first state to the second state, and the signal layer is switched from the counterclockwise current to the no-electric signal or from the counterclockwise current to the clockwise current in the direction from the light emitting surface of the display panel to the display panel.

13. The display panel of claim 1,

the first end is provided with positive charges, the second end is fixedly connected with the first electrode layer, the first electrode layer receives a first voltage and the second electrode layer receives a second voltage in the first state, and the first voltage is greater than the second voltage;

or along a first direction, the silver nanorod comprises a first end and a second end which are oppositely arranged;

the first end is provided with negative charges, the second end is fixedly connected with the first electrode layer, the first electrode layer receives a third voltage, the second electrode layer receives a fourth voltage in the first state, and the third voltage is smaller than the fourth voltage;

14. The display panel of claim 1,

the first end is provided with positive charges, the second end is provided with negative charges, in the first state, the first electrode layer receives a fifth voltage, the second electrode layer receives a sixth voltage, and the fifth voltage is not equal to the sixth voltage;

15. The display panel of claim 2, wherein the display panel further comprises at least one metal film layer connected in parallel with the signal layer.

16. The display panel of claim 1, wherein the shape of the silver nanorods includes at least one of a dumbbell shape, a rod shape, and a shuttle shape.

17. The display panel of claim 4, wherein the silver nanorods have an extension length along the first direction of greater than or equal to 100 nm.

18. A display device characterized by comprising the display panel according to any one of claims 1 to 17;

the display device comprises a first mode and a second mode, and when the display device is in the first mode, the composite anode structure is in the first state; when the display device is in the second mode, the composite anode structure is in the second state.

19. The display device of claim 18,

the display device further comprises an optical electronic element, the optical electronic element is located in the first display area, and the optical electronic element is located on one side, far away from the light emitting face of the display panel, of the light emitting device.